Charlie Benante of Anthrax will miss the tour after his band mate Scott Ian confirmed via Twitter that the drummer is dealing with personal issues and is staying in the US.

"Charlie is dealing with personal issues right now and can't leave the country. He's really bummed about not being able to head down there," Ian tweeted.

Benante, who missed several dates last year after being arrested following a domestic dispute with his wife, will be replaced by Jon Dette on the tour.

Meanwhile, death metal band Six Feet Under have pulled out completely after drummer Kevin Talley was injured in a dirtbike accident. The group confirmed that Talley, who joined in 2011, will not be able to recover in time.

Earlier in the week, drummer-for-hire Josh Freese (Weezer, Paramore) also announced he will miss the tour due to other commitments.

Freese, who quit A Perfect Circle last year, is the current drummer for The Vandals and will be replaced by Alkaline Trio's Derek Grant.